| Abbreviation | Definition |
|---|---|
| ACP | Administrator's Control Panel |
| ACP | Advanced Co-Processor |
| ACPU | Aperiodic Constant Processing Utilization |
| ACRED | Cloud Retrieval Ensemble Data Set |
| ACS | Adder Comparator Selector |
| ACSR | Automated Compound Storage Retrieval |
| ACSU | Add Compare Select Unit |
| AD | Analog Disc |
| A-D | Analog to Digital |
| ADACS | Advanced Data Acquisition and Control System |
| ADACS | Advanced Digital and Analog Collection System |
| ADAM | Advanced Distributed Associative Memory |
| ADAM | Assembly Description Assembly Modification |
| ADAM | Asynchronous Data Acquisition Module |
| ADC | Apple Display Connecter |
| ADC | Automatic Delay Compensation |
| ADCH | Advanced Diploma in Computer Hardware |
| ADCS | Automated Data Capture System |
| ADCU | Advanced Digital Control Unit |
| ADCU | Analog Data Collection Unit |